The best hookah charcoal, according to most, is coconut, or rather, made from coconut shells. This coal is kindled for a long time (with the help of an external heat source), but it also keeps the heat necessary to maintain the hookah’s performance for a long time. You will need to replace coconut charcoal on a hookah no earlier than after half an hour of smoking. Another plus of these coals is that they do not affect the taste of tobacco and do not emit harmful substances. Coals should be heated to full redness, about 7-15 minutes on average.